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03-10-2018, 10:41 AM
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#1
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Seasoned Camper
Join Date: Mar 2009
Location: Loogootee
Posts: 81
M.O.C. #9197
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Continuing Black Tank Saga
Yea! I found my leak. My black tank is leaking along the front top seam. It's not real big/long. Is there something I can squirt or paint along this seam that will stop the leak? Anyone use Flex Steel? I of course will be very careful not to overfill my tank again as I assume that's what happened that caused the leak. Any and all ideas are much appreciated. Thank you for all your advice.
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03-10-2018, 10:48 AM
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#2
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Montana Master
Join Date: Apr 2017
Location: 1000 oaks
Posts: 954
M.O.C. #19630
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Some have used eternabond tape with success.
__________________
2011 2955RL Gen-Y Executive Kingpin
2022 GMC 2500HD Duramax/Alison
4X4 Crew Cab/Standard bed.
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03-10-2018, 11:32 AM
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#3
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,707
M.O.C. #7992
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Somebody on this forum years back found an ABS resin repair compound. Might have been Oz. A search might find it. Seems like it was in a can almost like the ABS glue. Mine leaked at the top also. Found it when I walked away while back flushing the black tank. I never fixed it just quit over filling the tank.
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2006 3000RK
2009 Ram 2500
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03-10-2018, 03:21 PM
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#4
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,702
M.O.C. #12947
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Repaired a split in the bottom of my gray tank, ABS also, with this stuff. Works great. http://plasti-mend.com/cart/index.ph...tegory&path=59
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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03-10-2018, 08:29 PM
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#5
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,371
M.O.C. #4831
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Quote:
Originally Posted by rohrmann
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X2 on the Plasti-mend which is the product first found by Oz a long time ago.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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03-13-2018, 04:19 PM
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#6
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Montana Master
Join Date: Oct 2015
Location: westminster md
Posts: 2,320
M.O.C. #17894
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Never let any of the tanks get that full. Never travel with anything in the tanks. These tanks have a history of seam failure from over filling. As far as the black tank goes, its a waste of water to use the amount of water that a flush creates. For this reason, I installed a shut off valve in the water line to the toilet so I can either throttle it way down or shut it completely off. There is no need to flush a lot of water down every time. My wife and I can dry camp for 10 or so days without dumping.
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03-13-2018, 06:00 PM
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#7
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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As far as i am concerned, plasti-mend is the only way to go. Have used it on my galley grey and my black tank. Have a kit in my closet should my shower grey tank decide to develop a leak anywhere on its tank body.
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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03-13-2018, 06:35 PM
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#8
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,702
M.O.C. #12947
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After repairing our grey tank that had a crack in the bottom of the tank, I added braces and blocking between the braces and the bottom of both the grey and black tanks. We can now fill and travel as needed with the tanks having water and waste in them, as needed. The photo shows the extra braces, 1 1/2" steel angle with the blocking between the braces and the tanks. After the photo, I removed the braces, re-installed the coroplast, and then installed the braces back into position. The tanks do not sag now.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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03-14-2018, 02:49 PM
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#9
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Montana Master
Join Date: Oct 2015
Location: westminster md
Posts: 2,320
M.O.C. #17894
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I did the same and supported all my tanks at the bottom. But I still try not to travel with much in them. I would rather travel with them either full of empty. Imagine a 1/2 full tank sloshing back and forth for several hundred miles. Not good. Its no wonder them bust and leak.
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03-14-2018, 10:12 PM
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#10
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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I also braced mine with angle iron and 2x4's and i don't carry much in them but it is peace of mind. To many stories about cracked tanks and it's mostly because not enough support. How can the rv industry build these like this if they are suppose to be self contained. I guess they think you go dry camping with dry fresh water tanks so you will never add anything to the other tanks.
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03-15-2018, 08:53 AM
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#11
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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We did the same as our tanks failed. We added support braces and flexible pipe at the inputs of the tanks. We also do not travel with much in the tanks.
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